Crossover between fractal and nonfractal flux penetration in high-temperature superconducting thin films

R. Surdeanu; R. Wijngaarden; B. Dam; J. Rector; R. Griessen; C. Rossel; Z.F. Ren; J.H. Wang

doi:10.1103/PhysRevB.58.12467

Crossover between fractal and nonfractal flux penetration in high-temperature superconducting thin films

R. Surdeanu, R. Wijngaarden, B. Dam, J. Rector, R. Griessen, C. Rossel, Z.F. Ren, J.H. Wang

Research output: Contribution to journal › Article › Scientific › peer-review

32 Citations (Scopus)

Abstract

In this study the role of anisotropy on flux penetration in c-axis epitaxial Tl2⁢Ba2⁢CuO6+𝑥 and YBa2⁢Cu3⁢O7−𝑥 films is investigated by magneto-optics. We study thin films of Tl2⁢Ba2⁢CuO6+𝑥 on substrates with vicinal angles of 0° (well-oriented), 0.5°, 2.5°, and 4° and YBa2⁢Cu3⁢O7−𝑥 films as a function of chain-conduction-induced anisotropy. A crossover from fractal to nonfractal flux penetration is observed with increasing anisotropy. Numerical simulations of anisotropic flux motion are compared with experiment.

Original language	English
Pages (from-to)	12467-12477
Number of pages	11
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	58
Issue number	18
DOIs	https://doi.org/10.1103/PhysRevB.58.12467
Publication status	Published - 1998
Externally published	Yes

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abstract = "In this study the role of anisotropy on flux penetration in c-axis epitaxial Tl2⁢Ba2⁢CuO6+𝑥 and YBa2⁢Cu3⁢O7−𝑥 films is investigated by magneto-optics. We study thin films of Tl2⁢Ba2⁢CuO6+𝑥 on substrates with vicinal angles of 0° (well-oriented), 0.5°, 2.5°, and 4° and YBa2⁢Cu3⁢O7−𝑥 films as a function of chain-conduction-induced anisotropy. A crossover from fractal to nonfractal flux penetration is observed with increasing anisotropy. Numerical simulations of anisotropic flux motion are compared with experiment.",

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T1 - Crossover between fractal and nonfractal flux penetration in high-temperature superconducting thin films

AU - Surdeanu, R.

AU - Wijngaarden, R.

AU - Dam, B.

AU - Rector, J.

AU - Griessen, R.

AU - Rossel, C.

AU - Ren, Z.F.

AU - Wang, J.H.

PY - 1998

Y1 - 1998

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AB - In this study the role of anisotropy on flux penetration in c-axis epitaxial Tl2⁢Ba2⁢CuO6+𝑥 and YBa2⁢Cu3⁢O7−𝑥 films is investigated by magneto-optics. We study thin films of Tl2⁢Ba2⁢CuO6+𝑥 on substrates with vicinal angles of 0° (well-oriented), 0.5°, 2.5°, and 4° and YBa2⁢Cu3⁢O7−𝑥 films as a function of chain-conduction-induced anisotropy. A crossover from fractal to nonfractal flux penetration is observed with increasing anisotropy. Numerical simulations of anisotropic flux motion are compared with experiment.

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Crossover between fractal and nonfractal flux penetration in high-temperature superconducting thin films

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